MSP430F20X3_14 Datasheet, PDF (70/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491I – AUGUST 2005 – REVISED DECEMBER 2012
www.ti.com
PIN NAME (P1.x)
P1.0/TACLK/ACLK/A0+
P1.1/TA0/A0-/A4+
P1.2/TA1/A1+/A4-
P1.3/VREF/A1-
Table 28. Port P1 (P1.0 to P1.3) Pin Functions, MSP430F20x3
x
FUNCTION
P1.0⁽³⁾ input/output
P1DIR.x
0/1
CONTROL BITS / SIGNALS⁽¹⁾⁽²⁾
P1SEL.x
SD16AE.x
0
0
Timer_A2.TACLK/INCLK
0
1
0
0
ACLK
1
1
0
A0+ ⁽⁴⁾
X
X
1
P1.1⁽³⁾ input/output
0/1
0
0
Timer_A2.CCI0A
0
1
0
1 Timer_A2.TA0
A0-^{(4) (5)}
A4+ ⁽⁴⁾
P1.2⁽³⁾ input/output
1
1
0
X
X
1
X
X
1
0/1
0
0
Timer_A2.CCI1A
0
1
0
2 Timer_A2.TA1
A1+ ⁽⁴⁾
A4-^{(4) (5)}
P1.3⁽³⁾ input/output
1
1
0
X
X
1
X
X
1
0/1
0
0
3 VREF
A1-^{(4) (5)}
X
1
0
X
X
1
INCHx
N/A
N/A
N/A
0
N/A
N/A
N/A
0
4
N/A
N/A
N/A
1
4
N/A
N/A
1
(1) X = Don't care
(2) N/A = Not available or not applicable
(3) Default after reset (PUC/POR)
(4) Setting the SD16AE.x bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying
analog signals.
(5) With SD16AE.x = 0 the negative inputs are connected to VSS if the corresponding input is selected.
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